Revealing a new region of gamma-ray emission in the vicinity of HESS J1825–137
সংরক্ষণ করুন:
| লেখক: | , , |
|---|---|
| বিন্যাস: | artículo original |
| প্রকাশনার তারিখ: | 2019 |
| বিবরন: | HESS J1825–137 is a bright very high-energy gamma-ray source that has been firmly established as a pulsar wind nebula (PWN), and one of the most extended gamma-ray objects within this category. The progenitor supernova remnant (SNR) for this PWN has not been firmly established. We carried out an analysis of gamma-ray observations in the region of HESS J1825–137 with the Fermi–LAT that reveals emission in the direction away from the Galactic plane. The region lies beyond the PWN and reaches a distance from the pulsar compatible with the supposed location of the SNR shock front. The spectrum of the gamma-rays is hard with a photon index of ∼1.9 in the 10–250 GeV range. Several scenarios for the origin of the emission are discussed, including the SNR as a source of high-energy particles and the ‘leakage’ of leptons from the PWN. |
| দেশ: | Kérwá |
| প্রতিষ্ঠান: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| ভাষা: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/90562 |
| অনলাইন ব্যবহার করুন: | https://academic.oup.com/mnras/article/485/1/1001/5322176 https://hdl.handle.net/10669/90562 |
| মুখ্য শব্দ: | ISM individual objects HESS J1825-137A ISM supernova remnants Gamma rays |